Childhood leukemia is the most common childhood cancer with more than 3,500 children in the U.S. diagnosed each year. Patrick Zweidler-McKay, M.D., Ph.D., Assistant Professor at The University of Texas MD Anderson Cancer Center Children’s Cancer Hospital, talks about symptoms, diagnoses and treatment of this blood disease. Zweidler-McKay also discusses health problems that may occur decades after treatment and encourages long term follow-up doctor visits.